Multi-step reaction with 8 steps
1: 22.0 g / sodium methanolate / methanol / 2.25 h / 0 °C
2: 7.3 g / methanol / 1.) 40 deg C, 2 h, 2.) 50 deg C, 5 h
3: 1.) lithium aluminum hydride / diethyl ether / 1.) 0 deg C, 1 h, 2.) RT, 2 h
4: manganese dioxide, triethylamine / diethyl ether / 48 h / Ambient temperature
7: 1.) 1 M triethylborane, 2.) sodium borohydride / 1.) THF, 20 deg C, 140 min, 2.) -75 deg C, 12 h
8: H2, triethylamine / 10percent Pd/C / methanol / 0.33 h / Ambient temperature
With
manganese(IV) oxide; sodium tetrahydroborate; lithium aluminium tetrahydride; triethyl borane; hydrogen; sodium methylate; triethylamine;
palladium on activated charcoal;
In
methanol; diethyl ether;
DOI:10.1021/jm00163a011